JPS6111673B2 - - Google Patents
Info
- Publication number
- JPS6111673B2 JPS6111673B2 JP56203459A JP20345981A JPS6111673B2 JP S6111673 B2 JPS6111673 B2 JP S6111673B2 JP 56203459 A JP56203459 A JP 56203459A JP 20345981 A JP20345981 A JP 20345981A JP S6111673 B2 JPS6111673 B2 JP S6111673B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- light
- coating
- coating liquid
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011248 coating agent Substances 0.000 claims description 34
- 238000000576 coating method Methods 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000002834 transmittance Methods 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000010408 film Substances 0.000 description 64
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000013039 cover film Substances 0.000 description 10
- -1 polypropylene Polymers 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000010954 inorganic particle Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 150000005621 tetraalkylammonium salts Chemical class 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- GKXVJHDEWHKBFH-UHFFFAOYSA-N [2-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC=C1CN GKXVJHDEWHKBFH-UHFFFAOYSA-N 0.000 description 1
- JJLKTTCRRLHVGL-UHFFFAOYSA-L [acetyloxy(dibutyl)stannyl] acetate Chemical compound CC([O-])=O.CC([O-])=O.CCCC[Sn+2]CCCC JJLKTTCRRLHVGL-UHFFFAOYSA-L 0.000 description 1
- TVJPBVNWVPUZBM-UHFFFAOYSA-N [diacetyloxy(methyl)silyl] acetate Chemical compound CC(=O)O[Si](C)(OC(C)=O)OC(C)=O TVJPBVNWVPUZBM-UHFFFAOYSA-N 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Photosensitive Polymer And Photoresist Processing (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は多品種少量生産の可能な表面に凹凸の
ある光透過性フイルムの製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a light-transmitting film having an uneven surface, which enables production of a wide variety of products in small quantities.
従来から表面に凹凸のあるフイルムの製造方法
としては次のような方法が知られている。 The following methods are conventionally known as methods for producing films with uneven surfaces.
(1) フイルム中に二酸化硅素、二酸化チタン、炭
酸カルシウム等の無機粒子、および相溶性のな
い有機ポリマなどを添加する方法。(1) A method in which inorganic particles such as silicon dioxide, titanium dioxide, calcium carbonate, and incompatible organic polymers are added to the film.
(2) 溶剤処理、コロナ放電、プラズマ放電、電子
線照射、Ｘ線照射等の表面処理を用いる方法。(2) Methods using surface treatments such as solvent treatment, corona discharge, plasma discharge, electron beam irradiation, and X-ray irradiation.
(3) 機械的エンボス加工、サンドブラスト加工な
どの方法。(3) Methods such as mechanical embossing and sandblasting.
(4) 結晶化促進処理および結晶化促進剤などを添
加する方法。(4) A method of crystallization promotion treatment and addition of crystallization promoters.
(5) 平滑なフイルム上に無機粒子等を含む塗布液
をコーテイングする方法。(5) A method of coating a smooth film with a coating solution containing inorganic particles.
しかしながら、上記の方法のうち、(1)〜(4)は生
産設備が大きくなるなど少量の生産には適してい
ない。 However, among the above methods, (1) to (4) require large production facilities and are not suitable for small-scale production.
また(5)は無機粒子等の粘度分布、分散性に問題
があり、所望の凹凸を再現性よく生産することが
難しいなどの問題点がある。 In addition, (5) has problems with the viscosity distribution and dispersibility of inorganic particles, etc., and it is difficult to produce desired unevenness with good reproducibility.
本発明者らは、上記問題点を解決すべく鋭意検
討した結果、以下に述べる本発明に到達した。 The present inventors have made extensive studies to solve the above problems, and as a result, have arrived at the present invention described below.
すなわち、本発明は塗工樹脂と溶媒とから主と
してなる塗布液を活性光線に対する光線透過率が
少なくとも50％以上の光透過性フイルムの表面に
塗布し、硬化させて表面に凹凸を有する光透過性
フイルムを製造するに際し、該塗布液として粘度
が0.5〜3.0ポイズであつて、かつ上記フイルム表
面に塗膜を形成した後の活性光線に対する光線透
過率が少なくとも50％以上である塗布液を使用
し、該塗布液をセル部分を面積がグラビアロール
の表面積に対して、10〜80％であるようなグラビ
アロールによつて、上記フイルム表面に塗布し、
硬化させることを特徴とする表面に凹凸を有する
光透過性フイルムの製造方法に関するものであ
る。 That is, the present invention applies a coating liquid mainly consisting of a coating resin and a solvent to the surface of a light-transmitting film having a light transmittance of at least 50% to actinic rays, and curing it to form a light-transmitting film having irregularities on the surface. When producing the film, a coating liquid is used that has a viscosity of 0.5 to 3.0 poise and a light transmittance of at least 50% to actinic rays after forming a coating film on the film surface. , applying the coating liquid to the surface of the film using a gravure roll whose cell portion has an area of 10 to 80% of the surface area of the gravure roll;
The present invention relates to a method for producing a light-transmitting film having an uneven surface, which is characterized by curing.
本発明の製造方法は次のような特徴を有する。 The manufacturing method of the present invention has the following features.
(1) 表面に凹凸をつけるフイルムの種類は問わな
い。(1) It does not matter what kind of film the surface is made of.
(2) 凹凸のパターンはグラビアロールの彫刻によ
り任意のものを選定することが可能である。(2) Any uneven pattern can be selected by engraving the gravure roll.
(3) 凹凸の山の高さは、塗液の濃度、粘度の変更
およびグラビアロールを変えることで選択が容
易である。(3) The height of the uneven peaks can be easily selected by changing the concentration and viscosity of the coating liquid and by changing the gravure roll.
(4) 少量生産する場合でも、無駄になるのはパン
に残る塗液だけであるので非常に経済的であ
る。(4) Even when producing in small quantities, the only thing that is wasted is the coating liquid remaining on the bread, so it is very economical.
(5) 無機物の添加によらないため、透明性の優れ
た、表面に凹凸のあるフイルムをつくることが
できる等である。(5) Since it does not depend on the addition of inorganic substances, it is possible to create films with excellent transparency and uneven surfaces.
本発明の方法により製造される表面に凹凸を有
するフイルムは光透過性のものである。ここでい
う光透過性とは、たとえば、活性光線（波長300
ナノメータから500ナノメーター）に対して光線
透過率が50％以上のものをいう。 The film having an uneven surface produced by the method of the present invention is light-transmissive. The light transmittance here refers to, for example, active light (wavelength 300
(nanometer to 500 nanometer) with a light transmittance of 50% or more.
本発明において塗布液を塗布するために用いら
れる基体フイルムとしては、前に定義された光透
過性を有するものであるなら制限はなく、用途に
より適宜選択が可能であつて基体フイルムの一例
として、たとえば、ポリプロピレンフイルム、ポ
リ塩化ビニリデンフイルム、ポリスチレンフイル
ム、ポリアミドフイルム、ポリ塩化ビニルフイル
ム、ポリエステルフイルム、ポリブタジエンフイ
ルム、ポリエチレンフイルム、ポリビニルアルコ
ール系フイルム等のプラスチツクフイルム、およ
び上記フイルムの複合フイルム等がある。 The base film used for applying the coating liquid in the present invention is not limited as long as it has the light transmittance defined above, and can be selected as appropriate depending on the application. Examples of the base film include: Examples include plastic films such as polypropylene film, polyvinylidene chloride film, polystyrene film, polyamide film, polyvinyl chloride film, polyester film, polybutadiene film, polyethylene film, polyvinyl alcohol film, and composite films of the above films.
また、上記基体フイルムにコロナ放電処理等の
表面処理および光透過性をそこなわない範囲で金
属の蒸着処理等を行なうことも可能である。 It is also possible to subject the base film to surface treatment such as corona discharge treatment and metal vapor deposition treatment within a range that does not impair light transmittance.
本発明に使用されるグラビアロールは、グラビ
アロールのセル部分の面積が、ロール表面積の10
〜80％、好ましくは10〜60％のものであれば、セ
ル形状はとわず、たとえば格子、斜線、ピラミツ
ド等の幾何学模様あるいは特定な規則性がない模
様でも良い。 In the gravure roll used in the present invention, the area of the cell portion of the gravure roll is 10% of the roll surface area.
~80%, preferably 10~60%, the cell shape is not limited and may be a geometric pattern such as a lattice, diagonal lines, pyramid, or a pattern without specific regularity.
セル部分の面積がロール表面積に対して80％以
上になつた場合、フイルム上に生じる凹凸は山と
山が重なつた形態になり、目的とする凹凸フイル
ムが得られない。 If the area of the cell portion exceeds 80% of the roll surface area, the unevenness formed on the film will be in the form of overlapping peaks, making it impossible to obtain the desired uneven film.
またセル部分の面積がロール表面積に対して、
10％以下の場合は、山の高さを高くすることが困
難であり、上記と同じく目的とする凹凸フイルム
が得られない。グラビアロールのセルは、ロール
表面に対して実質的に均一に配置されている必要
がある。 Also, the area of the cell part is relative to the roll surface area.
If it is less than 10%, it is difficult to increase the height of the ridges, and the desired uneven film cannot be obtained as described above. The cells of the gravure roll must be substantially uniformly arranged over the roll surface.
ここでいうセルとは、たとえば第１図および第
２図に示すようなもので図面中のイは平面図を、
またロはその断面図を表わす概略図である。そし
てセル部分の面積とは、セル開口部分の面積すな
わち、ａ×ａをいう。 The cells referred to here are, for example, those shown in Figures 1 and 2. A in the drawings indicates a plan view,
B is a schematic diagram showing a cross-sectional view thereof. The area of the cell portion refers to the area of the cell opening portion, that is, a×a.
またグラビアロールの表面積に対するセル部分
の面積の割合とは、第１図および第２図のような
セルが均一にロール表面に存在した場合を例にと
ると、（ａ×ａ）÷｛（ａ＋ｂ）×（ａ＋ｂ）｝とな
る。 Furthermore, the ratio of the area of the cell portion to the surface area of the gravure roll is (a×a) ÷ {(a+b )×(a+b)}.
本発明に使用される塗布液は、塗布される状態
下での粘度が0.5〜30ポイズ、好ましくは１〜15
ポイズのものであれば良く、溶媒としてはその種
類を問わない。 The coating liquid used in the present invention has a viscosity of 0.5 to 30 poise, preferably 1 to 15 poise under coating conditions.
Any type of solvent may be used as long as it is a poise one.
粘度が0.5ポイズ以下では、コーテイング直後
にできた凹凸は直ちにレベリングし、乾燥後凹凸
は認められない。 When the viscosity is 0.5 poise or less, the unevenness formed immediately after coating is leveled immediately, and no unevenness is observed after drying.
また粘度が30ポイズ以上であれば、コーテイン
グ自体が難しく、安定した特性を有するフイルム
が得られない。 Furthermore, if the viscosity is 30 poise or more, coating itself is difficult and a film with stable properties cannot be obtained.
本発明に用いられる塗布液は、乾燥後もしくは
キユア後、形態保持性を有するものであるなら、
その種類は問わない。このような目的のため用い
られるものとしては、たとえば塩素化ポリプロピ
レン、飽和ポリエステル樹脂、ブチラール樹脂；
塩化ビニリデン樹脂、塩化ビニル樹脂、アルキド
樹脂、アクリル系樹脂、エポキシ樹脂、ポリアミ
ド樹脂、ポリウレタン樹脂、ポリビニルアルコー
ル系樹脂、天然樹脂などがあげられる。これらは
併用して用いることも可能である。 If the coating liquid used in the present invention has shape retention properties after drying or curing,
The type does not matter. Examples of materials used for this purpose include chlorinated polypropylene, saturated polyester resin, butyral resin;
Examples include vinylidene chloride resin, vinyl chloride resin, alkyd resin, acrylic resin, epoxy resin, polyamide resin, polyurethane resin, polyvinyl alcohol resin, and natural resin. These can also be used in combination.
また、溶媒としては、たとえばトルエンなどの
芳香族炭化水素、メチルエチルケトンなどのケト
ン類、エタノールなどのアルコール類、THFな
どのエーテル類、水などの無機極性溶媒等をあげ
ることができる。上記の溶媒は２種以上併用して
もよい。 Examples of the solvent include aromatic hydrocarbons such as toluene, ketones such as methyl ethyl ketone, alcohols such as ethanol, ethers such as THF, and inorganic polar solvents such as water. Two or more of the above solvents may be used in combination.
更に塗布液に対してチクソトロピイ性を付与す
るため、および表面凹凸層の滑り性を良くするた
めに、二酸化硅素、二酸化チタン、炭酸カルシウ
ム等の無機物、あるいは塗工樹脂と相溶性のない
有機物等を少量添加しても良い。 Furthermore, in order to impart thixotropic properties to the coating solution and to improve the slipperiness of the uneven surface layer, inorganic substances such as silicon dioxide, titanium dioxide, calcium carbonate, or organic substances that are incompatible with the coating resin are added. A small amount may be added.
また無機物等の分散安定性の改良、および制電
性を付与するために界面活性剤を添加してもよ
い。 Further, a surfactant may be added to improve the dispersion stability of inorganic substances and the like and to impart antistatic properties.
このようにして調整された塗布液をフイルム表
面に前記グラビアロールを用いて塗布し、硬化す
ることにより表面に凹凸を有する光透過性フイル
ムが得られる。 The coating solution prepared in this manner is applied onto the surface of the film using the gravure roll and cured to obtain a light-transmitting film having irregularities on the surface.
塗布液の硬化は乾燥、架橋などの公知の方法に
より込なわれる。 The coating solution is cured by known methods such as drying and crosslinking.
本発明の製造方法により得られる凹凸のある光
透過性フイルムは、実用上次のような特徴を持
つ。 The light-transmitting film with irregularities obtained by the production method of the present invention has the following practical characteristics.
(1) 表面に凹凸のあるフイルムを、他の平滑な面
を有する物体と接触させた場合、表面に凹凸の
あるフイルムの表面凹部を通して気体、液体等
が容易に動き易いため、表面に凹凸のあるフイ
ルムと平滑面が容易に密着する。(1) When a film with an uneven surface is brought into contact with another object with a smooth surface, gases, liquids, etc. can easily move through the recesses on the surface of the film. A certain film and a smooth surface easily come into close contact.
(2) 表面に凹凸のあるフイルムを他の面と接触さ
せた場合、接触面積が少なくなるので、表面滑
り性が良くなる。(2) When a film with an uneven surface is brought into contact with another surface, the contact area is reduced, which improves the surface slipperiness.
このフイルムの用途としては、印写材料用のフ
イルム、たとえばカバーフイルムなどあるいはコ
ーンデンサー用のフイルム等が挙げられる。 Applications of this film include films for printing materials, such as cover films, and films for cone densors.
さらに、印写材料の中でもたとえば水なし平版
印刷版のカバーフイルムとして用いた場合には、
上記の特徴はより顕著なものになる。すなわち、
水なし平版印刷版を製版する過程においては、水
なし平版印刷版原板のカバーフイルムの表面に原
図フイルム（ポジないしネガ）を真空密着させて
たとえば、活性光線などを用いて露光する必要が
ある。この際、たとえば表面に凹凸がない平滑な
カバーフイルムを用いた場合、原図フイルムとカ
バーフイルムとがお互いに平滑なため、その間に
ある空気が逃げにくいので原図フイルムをカバー
フイルム表面に密着するには相当な時間を要す
る。また密着が完全でない部分、たとえば原図フ
イルムとカバーフイルムとの密着が不均一な場所
では焼ぼけを生ずるおそれがある。ところが本発
明により得られるフイルムをカバーフイルムとし
て用いた場合には、表面に凹凸を有しているので
前述のような効果が最も顕著であり、水なし平版
印刷版のカバーフイルムとしては特に有用であ
る。 Furthermore, when used as a cover film for waterless lithographic printing plates among printing materials, for example,
The above characteristics become more pronounced. That is,
In the process of making a waterless lithographic printing plate, it is necessary to vacuum-adhere an original image film (positive or negative) to the surface of the cover film of the waterless lithographic printing plate original plate and expose it to, for example, actinic rays. At this time, for example, if a smooth cover film with no uneven surfaces is used, the original film and the cover film are both smooth, so it is difficult for the air between them to escape, so it is difficult to make the original film adhere to the cover film surface. It takes a considerable amount of time. Further, in areas where the adhesion is not perfect, for example, where the original film and the cover film are not in uniform adhesion, blurring may occur. However, when the film obtained according to the present invention is used as a cover film, the above-mentioned effect is most noticeable because the film has irregularities on the surface, and it is particularly useful as a cover film for waterless planographic printing plates. be.
このように本発明は、フイルムの表面凹凸の形
状を容易に変更でき、従つて要求に応じた多品種
のものの製造が可能であり、また透明性を低下す
ることなく表面凹凸を有したフイルムを製造でき
る点から、シリコーンゴム層によりインキ反撥部
を形成する水なし平版印刷版（特公昭54−
26923、特公昭56−23150、特開昭55−110249、特
公昭56−14976等）に適した表面に凹凸を有する
カバーフイルム（特開昭55−55343）の製造方法
として好都合に適用することができる。 As described above, the present invention allows the shape of the surface unevenness of the film to be easily changed, and therefore allows the production of a wide variety of products in accordance with the requirements, and also allows the film with the surface unevenness to be produced without reducing the transparency. From the point of view of manufacturing, waterless lithographic printing plates (Special Publications 1973-
26923, Japanese Patent Publication No. 56-23150, Japanese Patent Publication No. 55-110249, Japanese Patent Publication No. 56-14976, etc.) It can be conveniently applied as a method for manufacturing a cover film (Japanese Patent Publication No. 55-55343) having an uneven surface. can.
以下、実施例により本発明を更に詳しく説明す
る。 Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例 １
ポリプロピレンフイルム（厚さ８μ）に第１図
に示すような微細パターンのグラビアロール（ピ
ラミツド型、ａ／ｂ＝２、55線／インチ、セル部
分の面積がロール全表面に対して44％）を使用し
て下記の組成の塗布液を塗布し、硬化させた。Example 1 A gravure roll (pyramid type, a/b = 2, 55 lines/inch, the area of the cell portion is 44 mm with respect to the entire surface of the roll) was made of a polypropylene film (thickness: 8μ) with a fine pattern as shown in Figure 1. %), a coating solution having the following composition was applied and cured.
なお、塗布液の粘度は2.5ポイズあり、塗布液
の硬化は、70℃、40秒の熱風乾燥によつて行なつ
た。 The viscosity of the coating solution was 2.5 poise, and the coating solution was cured by hot air drying at 70° C. for 40 seconds.
(a) 塩素化ポリプロピレン（山陽国策パルプ社製
スーパークロン803H） 20.0wt％
(b) 二酸化硅素 0.6wt％
(c) トルエン 55.4wt％
(d) メチルエチルケトン 24.0wt％
このようにして得られたフイルムは山の高さが
８〜10μである凹凸を有し、しかも光透過性のも
のであつた。このフイルムをベツクの平滑度計で
測定したところ、一定量の空気が抜けるのに600
秒かかつた。(a) Chlorinated polypropylene (Super Chron 803H manufactured by Sanyo Kokusaku Pulp Co., Ltd.) 20.0wt% (b) Silicon dioxide 0.6wt% (c) Toluene 55.4wt% (d) Methyl ethyl ketone 24.0wt% The film thus obtained was It had unevenness with a peak height of 8 to 10 microns, and was transparent to light. When this film was measured with a Beck smoothness meter, it took 600 minutes for a certain amount of air to escape.
It took seconds.
比較例 １
第２図に示すような断面をもち、セル部分の面
積がロール全表面に対して87％であるような85
線／インチの格子グラビアロールを用いるほかは
全て実施例１と同様にして凹凸フイルムを製造し
た。このフイルムをベツクの平滑度計で測定した
ところ104秒以上であつた。Comparative Example 1 An 85-sized roll having a cross section as shown in Figure 2, with the area of the cell portion accounting for 87% of the entire roll surface.
A textured film was produced in the same manner as in Example 1 except that a line/inch grating gravure roll was used. When this film was measured with a Beck smoothness meter, it was 104 seconds or more.
比較例 ２
ポリエステルフイルム（厚さ９μ）に図１に準
じた微細パターンを持つたグラビアロール（ピラ
ミツド型、ａ／ｂ＝１、55線／インチ、セル部分
の面積25％）を使用して次に示す組成の塗液をコ
ーテイングし、表面に凹凸を有する光透過性フイ
ルムを作成した。なお、塗布液の粘度は0.3ポイ
ズで、硬化は80℃で30秒の熱風乾燥で行つた。Comparative Example 2 A polyester film (thickness 9μ) was coated with a gravure roll (pyramid type, a/b = 1, 55 lines/inch, cell area 25%) having a fine pattern similar to that shown in Figure 1. A light-transmitting film having an uneven surface was prepared by coating with a coating liquid having the composition shown below. The viscosity of the coating liquid was 0.3 poise, and curing was performed by hot air drying at 80°C for 30 seconds.
(a) 飽和ポリエステル樹脂（東洋紡社製“バイロ
ン200”） 20.0wt％
(b) 帯電防止剤（テトラアルキルアンモニウム
塩） 0.2wt％
(c) 二酸化硅素 0.2wt％
(d) トルエン 63.6wt％
(e) メチルエチルケトン 16.0wt％
その結果、表面粗度計で測定して凹凸が殆ど認
められないフイルムが得られ、ベツクの平滑度計
で20000秒以上と空気抜け速度も悪かつた。(a) Saturated polyester resin (“Vylon 200” manufactured by Toyobo Co., Ltd.) 20.0wt% (b) Antistatic agent (tetraalkylammonium salt) 0.2wt% (c) Silicon dioxide 0.2wt% (d) Toluene 63.6wt% (e ) Methyl ethyl ketone 16.0wt% As a result, a film was obtained in which almost no irregularities were observed when measured with a surface roughness meter, and the air release speed was also poor at 20,000 seconds or more when measured with a Beck smoothness meter.
実施例 ２
比較例２と同じ条件で次に示す組成の塗液をコ
ーテイングし表面に凹凸を有するフイルムを作成
した。なお、塗布液の粘度は４ポイズであつた。Example 2 Under the same conditions as Comparative Example 2, a film having an uneven surface was prepared by coating with a coating liquid having the composition shown below. The viscosity of the coating liquid was 4 poise.
(a) 飽和ポリエステル樹脂（東洋紡社製“バイロ
ン200”） 35.0 wt％
(b) 帯電防止剤（テトラアルキルアンモニウム
塩） 0.35wt％
(c) 二酸化硅素 0.35wt％
(d) トルエン 51.3 wt％
(e) メチルエチルケトン 13.0 wt％
その結果、山の高さが３〜４μなる凹凸を表面
に持つた透明性の優れた（ヘイズ３〜４％）フイ
ルムが得られた。(a) Saturated polyester resin (“Vylon 200” manufactured by Toyobo Co., Ltd.) 35.0 wt% (b) Antistatic agent (tetraalkylammonium salt) 0.35 wt% (c) Silicon dioxide 0.35 wt% (d) Toluene 51.3 wt% (e ) Methyl ethyl ketone 13.0 wt% As a result, a film with excellent transparency (haze 3-4%) was obtained which had unevenness on the surface with peak heights of 3-4 μm.
またベツクの平滑度計で500秒と、比較例に対
して空気抜け速度が良好であることがわかつた。 In addition, it was found that the air release speed was 500 seconds using a Beck smoothness meter, which was better than that of the comparative example.
実施例３、比較例３
アルミニウム基板上に、次の組成を有する感光
液（10％エチルセロソルブ溶液）を塗布し、80℃
熱風中で乾燥して厚さ４ミクロンの光重合層を設
けた。Example 3, Comparative Example 3 A photosensitive solution (10% ethyl cellosolve solution) having the following composition was coated on an aluminum substrate and heated at 80°C.
A photopolymerized layer with a thickness of 4 microns was provided by drying in hot air.
(a) ポリウレタン樹脂「Impranil ELN」（Bayer
社製） 56 重量部
(b) メタクリル酸グリシジル４モルトキシリレン
ジアミン１モルの付加反応物 40 重量部
(c) ミヒラー氏ケトン ４ 重量部
(d) クリスタルバイオレツト 0.4重量部
この光重合層の上に次の組成を有するシリコー
ンの10％ｎ−ヘキサン希釈液を塗布し、50℃熱風
中で乾燥して厚さ３ミクロンのシリコーンゴム層
を設けた。(a) Polyurethane resin “Impranil ELN” (Bayer
) 56 parts by weight (b) 4 moles of glycidyl methacrylate Addition reaction product of 1 mole of xylylene diamine 40 parts by weight (c) Michler's ketone 4 parts by weight (d) Crystal violet 0.4 parts by weight On top of this photopolymerized layer A 10% n-hexane diluted solution of silicone having the following composition was coated on the substrate and dried in hot air at 50° C. to form a silicone rubber layer with a thickness of 3 microns.
(a) ポリジメチルシロキサン（分子量約40000）
100 重量部
(b) メチルトリアセトキシシラン ５ 重量部
(c) 酢酸ジブチルスズ 0.2重量部
このようにして設けたシリコーンゴム層の表面
に、実施例２で得られたフイルムの平滑面（凹凸
を有さない表面）がシリコーンゴム層と接するよ
うにしてラミネートし、水なし平版印刷版原板と
した。真空焼枠を用いて、この印刷版原版にポジ
フイルムを密着するのに１分間を要した。(a) Polydimethylsiloxane (molecular weight approximately 40,000)
100 parts by weight (b) Methyltriacetoxysilane 5 parts by weight (c) Dibutyltin acetate 0.2 parts by weight The material was laminated so that the free surface) was in contact with the silicone rubber layer to obtain a waterless lithographic printing plate blank. It took one minute to bring the positive film into close contact with this printing plate precursor using a vacuum printing frame.
また、比較として表面に凹凸を有さない平滑な
フイルムを用いて得られた水なし平版印刷版原板
で、同様の操作をしたところ、、真空密着時間に
３分間を要した。 For comparison, when the same operation was performed using a waterless lithographic printing plate blank obtained using a smooth film having no irregularities on the surface, the vacuum adhesion time required 3 minutes.
なお、本発明の凹凸を有するフイルムが設けら
れた印刷版の場合には、平滑なフイルムを用いた
場合にしばしば発生するポジフイルムとカバーフ
イルムとの密着性不良に基づく焼ボケが皆無であ
つた。 In addition, in the case of the printing plate provided with the uneven film of the present invention, there was no burning blur due to poor adhesion between the positive film and the cover film, which often occurs when a smooth film is used. .
第１図および第２図は、本発明に用いられるグ
ラビアロールのセルの一例を表わす概念図でイは
その平面図、ロはその断面図である。
FIGS. 1 and 2 are conceptual diagrams showing an example of a gravure roll cell used in the present invention, in which A is a plan view thereof and B is a sectional view thereof.
Claims (1)
活性光線に対する光線透過率が少なくとも50％以
上の光透過性フイルムの表面に塗布し、硬化させ
て表面に凹凸を有する光透過性フイルムを製造す
るに際し、該塗布液として粘度が0.5〜3.0ポイズ
であつて、かつ上記フイルム表面に塗膜を形成し
た後の活性光線に対する光線透過率が少なくとも
50％以上である塗布液を使用し、該塗布液をセル
部分の面積がグラビアロールのロール表面積に対
して、10〜80％であるようなグラビアロールによ
つて、上記フイルム表面に塗布し、硬化させるこ
とを特徴とする表面に凹凸を有する光透過性フイ
ルムの製造方法。1. Applying a coating liquid mainly consisting of a coating resin and a solvent to the surface of a light-transmitting film with a light transmittance of at least 50% to active light rays, and curing it to produce a light-transmitting film having irregularities on the surface. In this case, the coating liquid has a viscosity of 0.5 to 3.0 poise, and a light transmittance to actinic rays after forming a coating film on the film surface.
Using a coating liquid having a concentration of 50% or more, applying the coating liquid to the surface of the film using a gravure roll in which the area of the cell portion is 10 to 80% of the roll surface area of the gravure roll, A method for producing a light-transmitting film having an uneven surface, the method comprising curing the film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20345981A JPS58104674A (en) | 1981-12-18 | 1981-12-18 | Method of making light-permeable film having rugged surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20345981A JPS58104674A (en) | 1981-12-18 | 1981-12-18 | Method of making light-permeable film having rugged surface |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2529887A Division JPS62247868A (en) | 1987-02-05 | 1987-02-05 | Production of light transmissive film having ruggedness on surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58104674A JPS58104674A (en) | 1983-06-22 |
| JPS6111673B2 true JPS6111673B2 (en) | 1986-04-04 |
Family
ID=16474470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20345981A Granted JPS58104674A (en) | 1981-12-18 | 1981-12-18 | Method of making light-permeable film having rugged surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58104674A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61209129A (en) * | 1985-03-01 | 1986-09-17 | Tokuyama Soda Co Ltd | Manufacture of partially microporous sheet |
| JP6236991B2 (en) * | 2013-08-27 | 2017-11-29 | 東レ株式会社 | Coating method and coating apparatus |
| JP6199711B2 (en) * | 2013-11-26 | 2017-09-20 | 京セラ株式会社 | Dielectric film and film capacitor |
| JP2015217599A (en) * | 2014-05-16 | 2015-12-07 | 共同印刷株式会社 | Decorative sheet and production method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611944A (en) * | 1979-07-10 | 1981-02-05 | Matsushita Electric Works Ltd | Molding material of unsaturated polyester |
-
1981
- 1981-12-18 JP JP20345981A patent/JPS58104674A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611944A (en) * | 1979-07-10 | 1981-02-05 | Matsushita Electric Works Ltd | Molding material of unsaturated polyester |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58104674A (en) | 1983-06-22 |
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